• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Peru
La Arena Mine (La Arena Sulphide expansion Project)

This page is not tailored to
devices with screen width under 750 px.
 Location:
13 km SW from Huamachuco, Peru

  Regional Office:
Ave. La Floresta 497 Of. 103 Charcarilla del Estanque San Borja
Lima
Peru
Phone  ...  Subscription required
Fax+51-1-618-9729
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Peru
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
  • Copper
  • Silver
  • Silver Equivalent
Mining Method
  • Truck & Shovel / Loader
Production Start...


Owners

Source: p. 86
CompanyInterestOwnership
Pan American Silver Corp. 100 % Indirect
Ownership Tree

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Sandstone hosted
  • Porphyry
  • Epithermal


Summary:

Two types of mineralized deposits are recognized at the La Arena property – high-sulfidation epithermal gold deposits and porphyry-hosted copper-gold deposits. The epithermal gold deposits are hosted in sediments of the Lower Cretaceous Chimu Formation and the copper-gold deposit is hosed in Oligocene-age multi-stage intermediate intrusions.

Both deposits are characterized by alteration and mineralization occurrences as defined and described by Hedenquist (1987), Hedenquist and Lowenstern (1994), Arribas (1995) and Sillitoe (2010), among others. The epithermal gold deposit currently being mined is characterized by supergene oxidized high-sulfidation mineralization, which occurs in fractured sandstones and hydrothermal breccia zones. The porphyry deposit is dominated by primary copper sulfides with gold and lesser molybdenum.

High sulfidation epithermal gold deposits form in geothermal systems where hot acidic hydrothermal fluids emanate directly from an intrusive source and generally remain undiluted by ground water. As is the case at La Arena, these deposits often represent the upper parts of porphyry systems where the two types of mineralization often overlap. High-sulfidation deposits can display a wide variety of mineralization styles, including veins, hydrothermal breccias, stockwork, and disseminations or replacements.

In porphyry deposits, the sulfide ore minerals are dominantly structurally-controlled, with most mineralization occurr ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The current operation has been mining the oxide deposit at the La Arena Mine since 2011. The operation is a conventional drill, blast, shovel and truck open pit run-of-mine (ROM) operation. Mining is carried out on two 12-hour shifts, operating 7 days a week under an alliance style contract with Peruvian contractors. The oxide ore is hauled directly from the pit to the leach facility or to stockpiles.

The La Arena Mine Calaorco open pit is mined by conventional truck and shovel methods. The mining fleet consists of 90 tonne class rock trucks and 10 m3 hydraulic shovels. Blasthole drilling is performed by diesel powered rotary single pass track drills.

The bench height is 8 meters. Double benching is applied with a catch bench 11 meters wide in sandstone and 12 meters wide in porphyry. Inter-ramp wall angles are 43.5° in sandstone and 37.0° in porphyry.

Ramps are constructed 25 meters wide including berms and ditches. Leach ore is direct hauled to the leach facility or to ore stockpiles.

All waste material is hauled to the waste rock storage facility located south of the Calaorco pit. Non-Acid-Generating (NAG) waste is used to encapsulate the Potentially Acid Generating (PAG) waste.


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2022202120202019201820172016
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required149196204
Silver koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20212020201920172016
Waste  ......  Subscription required  ......  Subscription required32.5 Mt
Tonnes processed  ......  Subscription required  ......  Subscription required11,190 kt12,868 kt15.3 Mt
Daily processing capacity  ......  Subscription required  ......  Subscription required36,000 t36,000 t
Ore tonnes mined  ......  Subscription required  ......  Subscription required12,792 kt15.7 Mt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required1.9 2.07
Total tonnes mined  ......  Subscription required  ......  Subscription required48.1 Mt
Subscription required - Subscription is required.

Reserves at June 30, 2021:

CategoryTonnage CommodityGradeContained Metal
Proven 24.8 Mt Gold 0.39 g/t 314.1 koz
Probable 21.9 Mt Gold 0.27 g/t 193.3 koz
Measured 1.6 Mt Gold 0.32 g/t 16.2 koz
Indicated 2.6 Mt Gold 0.22 g/t 18.1 koz
Inferred 8.9 Mt Gold 0.24 g/t 70.1 koz

Commodity Production Costs:

CommodityUnits202220212020201920172016
Cash costs (sold) Gold USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
Total cash costs Gold USD 602 / oz   598 / oz  
Total cash costs Gold USD 599 / oz†   596 / oz†  
All-in sustaining costs (sold) Gold USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
All-in sustaining costs (AISC) Gold USD 837 / oz†   837 / oz†  
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2017
OP mining costs ($/t mined) USD 5.42
Processing costs ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units202220212020201920172016
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 32   35.6  
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 32   35.3  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 233.8   244.4  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 59.3   101.4  
Subscription required - Subscription is required



Heavy Mobile Equipment as of January 1, 2018:
HME TypeModelSizeQuantity
Dozer (crawler) ....................... Subscription required ....................... Subscription required
Dozer (crawler) ....................... Subscription required ....................... Subscription required
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required
Drill (blasthole) ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required ....................... Subscription required
Loader ....................... Subscription required ....................... Subscription required
Shovel ....................... Subscription required ....................... Subscription required
Truck (fuel / lube) 5000 gallons ....................... Subscription required
Truck (haul) ....................... Subscription required 90 t ....................... Subscription required
Truck (water) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsYear
Subscription required Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Management Discussion & Analysis 2018
Press Release 2018
Technical Report 2018
Year-end Mineral Reserves 2018
Annual Information Form 2017
Financial Review 2017
Management Discussion & Analysis 2017
Press Release 2017
Annual Information Form 2016
Corporate Presentation 2016
Financial Review 2016
Management Discussion & Analysis 2016
Annual Information Form 2015
Financial Review 2015
Management Discussion & Analysis 2015
Press Release 2015
Technical Report 2015
Subscription required - Subscription is required.

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.